Annular disc seal



FIG. 1 is an isometric bottom view thereof;

FIG. 2 is an isometric top view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a side view thereof, as taken from the left side of FIG. 3;

FIG. 6 is a front view thereof, as taken from the right side of FIG. 3;

FIG. 7 is an end view thereof, as taken from the upper side of FIG. 3; and,

FIG. 8 is an end view thereof, as taken from the lower side of FIG. 3. 

The ornamental design for an annular disc seal, as shown and described. 